In-line roller skate



FIG. 1 is a perspective view of the design for an in-line roller skate;

FIG. 2 is a left side elevational view of the in-line roller skate of FIG. 1;

FIG. 3 is a top plan view of the in-line roller skate of FIG. 1;

FIG. 4 is a front elevational view of the in-line roller skate of FIG. 1;

FIG. 5 is a rear elevational view of the in-line roller skate of FIG. 1;

FIG. 6 is a bottom plan view of the in-line roller skate of FIG. 1; and,

FIG. 7 is a right side elevational view of the in-line roller skate of FIG. 1. 

I claim the ornamental design for an in-line roller skate, as shown and described. 